Ajax Communication Techniques
Now that you understand the basics of how HTTP communication works, it's time to look into enacting such communication from within a web page. As you know, there are a lot of requests going back and forth between the browser and server while you are surfing the Web. Initially, all these requests happened because the user made an overt action that required such a step.Ajax techniques free developers from waiting for the user to make such an action, allowing youto create a call to the server at any time.